Updated doc with expected datetime values
Handle fromDate and displayUntil attributes when creating an alert
Update alert dates
Display only active notifications by default
Updated docs to explain more GET parameter
Merge branch 'master' into dates-handling

* master:
  Renamed the number of retries to retry_count
  Place task on queue if the initial push has some failures
  Added tasks for issuing retries from GCM
  Allow each provider to error independently
  Implemented notify (send push notification) for GCM
  Added gcm-client package for GCM interaction
  Added some documentation
  Initial email provider

Conflicts:
	moxie_notifications/views.py
Handle incorrect datetime
Merge pull request #5 from ox-it/dates-handling

Dates handling